Air-washing apparatus.



L. NAROWETZ.

AIR WASHING APPARATUS.

APPLICATION FILED JULY 18,1908.

907,634. Patented Dec. 22, 1908.

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AIR WASHING APPARATUS.

APPLICATION FILED JULY 18,1908.

Patented Dec. 22, 1908.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

LOUIS NAROWETZ, OF CHICAGO, ILLINOIS.

AIR-WASHING APPARATUS.

. Specification of Letters Patent.

- Patented Dec. 22, 1908.

Application filed July 18, 1908. Serial No. 444,157.

by passing the air, through Water; and my present invention is in the nature of an improvement in the particular type of air- I washer forming the subject of a pending application for Letters Patent filed by me on construction y which all of the air drawn 'into the apparatus shall be subjected to the washing action of the water; and, second, to

effect, as completely as possible, the elimination of the moisture taken up by the air in passing through the water, before it leaves objects are, first, to-afl'ord a the apparatus, with the minimum number of baffles and thus reduce, in so far as it can be reduced consistent with practically complete elimination of the moisture, the amount of resistance afforded to the passage of air through the apparatus.

Referring to the accompanying drawings: Figure 1 is a front .view of an air-washing apparatus constructed in accordance with my invention, this view'showing the screened end of the apparatus through which the air to be washed-is drawn into it. Fig. 2 is a section taken at the line 2 on Fig. 1 and viewed in the direction of the arrow. Fig. 3

is a section taken at the line 3 on Fig. 1 and viewed in the direction of the arrow. Fig. 4 is an enlarged view in sectional elevation of the upper end of the screen-arid-bafile construction. Fig. 5 is a reduced view in sectional elevation of the corn lete apparatus. Fig. 6 is a-section' taken at t e line 6 on Fig. 4, viewed in the direction vof the arrow, and

enlar ed; and Fig. .7, a perspective view of a deta' of the latch construction for holding certain of the'parts of the apparatus in separable position.

- The casing for housing the parts of the apparatus is represented at 8, and has its opposite ends 9 and 10 open for the passage of air through it. Its inner end 10 is restricted, as

represented, and is adapted to beconnectecl. with a conduit containing a suction-fan (not shown) as is commonly provided in structures of this kind for drawing the air to be cleansed through the apparatus.

' A frame-work, preferably composed of I parallel vertical angle-irons 11 spaced apart,

as represented in Fig. 3, is riveted to the inner surfaces of the casing 8. Fixed to this frame-work at its upper end to extend completely across the interior of the casing 8 and inclining forwardly and downwardly,

is a shelf 12 connected at its lower forward depending flange 13 to the rear flanges 14 of a vertical series of parallel angle-irons 15, which form a frame between the irons 11 and the outer air-inlet end 90f the casing. The forward edge-portion of the shelf 12 fits against a horizontally extending angleiron 16 which is fastened at opposite ends to the sides of the casing 8. The lower edge of the depending flange 13 of the shelf 12 is rearward y and upwardly bent to afford an upwardly-extending-flange 17 for a purpose hereinafter explained.

Below the shelf 12 is a vertical series of shelves 18 extending entirely across the interior of the casing, each vertically spaced apart from the other, as represented, and.

inclining downwardly and forwardly from their rear upper edge-portions, at which they are riveted at depending flanges 19 thereon to the irons 15. The flanges 19 are formed with rear upwardly extending flanges 20, as described of the shelf 12, for a. purpose hereinafter set forth. The she ves 18 are, preferably so inclined as to cause their upper end ortions to extend in a horizontal plane a ove that occupied by the opposed flanges 20 as represented, for the purpose hereinafter explained.

Extending across the interior of the easing 8 at the upper extremities of the shelves 18, are baffles 21, each of which is preferabl formed with 8. depending flange 22 at whic it is preferably lntegrally united with the shelf 18 adjacent to it and at which it is riveted to the irons 11, a central section 23 extending at rightangles to the shelf 18, and a lip 24 at right-angles to the section 23, each baffle, by reason'of its inclination the intersection of the outer edge-portions of the shelves 18 and the vertical irons 15, a screen 26 is removably suspended. Each of these screens fits 'flatwi'se against the adjacent rear flanges 14 of the irons 15 and the ends of its up er edge-portion are cut away as indicated at 27, and bent rearwardly and upwardly to form a hook-edge 28 which extends rearwardly beyond the 10 irons l5 and hooks over the adjacent flange 20, as most clearly represented in Fig. 4, the heights of the screens being such as to cause each of them to reach short of the plane in which the shelf 18 immediately elow it terminates, and thus a series of spaces 29, as illustrated in Figs. 1, 4 and 5, is afforded between the bottom of each screen and the shelf immediately below it. Securedwbetween the closely 8.6113061113110118 11 of the set intermediate the sides of the casing 8 is an u right plate, or partition, 30 which exten s rearwardly beyond the irons 11 and approximately to the top of the casing. Secured to the opposed inner surfaces of the sides of the casing 8 and to the opposite sides of the plate, or partition, in forwardly and upwardly inclined position, are vertical series of. angle-guides 31, preferably shaped as illustrated in Fig. 6, 30 to form channels 32 opening outwardly.

The channeled guides 31 areprovided to receive vertical series of spaced inclined shelves 33 which, in the construction illustrated, are provided in two vertical series 35 corres onding to the number of vertical se-.

rieso' the screens. Each shelf 33 is preferably formed with a main section 34, a rearwardly extending flange 35 at its upper end po'rtion, an upwardly and rearwardly ex+ tending flange 36 atits lower edge-portion, a depending section 37, and a forwardly and upwardly extending flange 38 on the lower edge portion of the section 37 bent to extend at an acute angle to the section 37. The shelves 33 are so formed and the channeled guides 31 are so constructed as to cause the former'to extend ap roximately at an an is of 45 degrees to the orizo'ntal and at 90 degrees to the shelves 18, a ainst which latter to the flanges 35- on the s elves 33 abut a slight distance belowthe upper edgeortions of the shelves 18,-as re resented. t is preferred that the lower en ortions of the sections 34- terminate in en stantially the same plane as that occupied by the extreme u per end of the deflector-section 23foppo srte to it, and that the flanged portion 38 of each of the shelves 33 extend downward to a point approximately in the same plane as below it is located.

The forwardlateral edge-portions of the shelves 33 are notched, as represented at 39, to permit them to clear the angle-irons 1 1 in 'moving'them into position in the guides 31,

that in which the upper end of the shelf 33 the latter being cut away 'as represented at 40 for a purpose hereinafter disclosed. The shelves 33 are thus removably secured in p0 sition in the casing, and to releasably hold these shelves in position I provide a U- shaped vertical plate 41 which. is applied at the flanges 42 thereon against the sections 37 of'the shelves 33 and in which position it is releasably held as by its engagement at slots 43 therein with recessed rearwardly project.- ing lugs 44 secured to the partition 30., this plate 'being sufficie'ntlywide to completely overlap the. ends of the shelves 33. The ends of the shelves 33 adjacent to the casingsides reach short of the latter and these shelves are held in place at theseends by double angle-irons 45 which rest at flanges 46 thereon against the casing-sides and at other flanges 47 against the sections 37, these irons being removably heldin place by .85 hook-devices 48, asdescribed of the plate 41.

Any suitable means for producing a water-cu'rtain may be employed, .butas the form illustrated is highly desirable, I have chosen to illustrate it as the means which I prefer to employ'for this purpose, the fol lowing being a description of this construction:' Adjustably fastened in the depending. flange of the iron 16 to project toward the air-inlet end of the casing are a series of horizontal studs 49, preferably 'in the form of screws screwing into the depending flange of the iron 16, and supported on these studs in front of the iron 16 are plates 50, each having avertical section 51, and downwardly and upwardly, forwardly inclined flanges 52 and 53, respectively, these plates being in the nature of deflectors having their connections with the studs a slight distance above the lower edges of the sections 51. It is preferred that one of these plates 50 be provided for each vertical series of screen-sections 26, and that the adjacent ends of these plates overlap, as represented. These plates 50 thus form, in combination with the upper surface of the shelf 12, a trough extending from side to side of the casing, the purpose or this construction'being that of receiving water and dischar ing it through the slot 54 formed between t e plates 50 and the iron 16, for forming the water-curtain.;

The Washing water is supplied through a pipe 55 which opens into rearwardly-extending branch-pipes 56 "connected therewith at intervals and adapted to dischar e water upon the shelf 12 by manipulating t e valves 57 provided on these branches 56, it being preferredthat two branches be provided for each vertical series of screens, as represented.

The operation of the apparatus is as follows: The washing water flows from the ipes .56 and discharges upon the shelf 12 rom which it flows through the slot 54, passing over the screens in the form of a continuous curtain. The air to be washed, entering i I the casing at the end 9, under the action of the usual suction-fan placed beyond the restricted end 10 of the casing 8, is drawn through the water-curtain and screens 26, and the air, and the water taken up by the air, is caused to im inge against the shelves 18 and battles 21, t e water being thus pre- 'tated onthese baflies and shelves 18fr0m c1 1 which it pours down in the course as indi--.

37, the coarser drops of water being precipi;

tated thereon and flowing into the troug formed by the flanges '38'from which it flows at their outer ends down through the casing 8 to the tank 58. The air in continuing through the casing impinges against the up per surfaces of the shelves 33 and the remainmg drops, if any, in the air are precipitated on these shelves and flows into the troughs formed by the flanges 36 and thence out of them at their ends into the tank 58. It will thus be seen that by this arrangement of shelves and bafiies, the moisture in the air is' very effectually removed.

As will be clearly'understood, theshelves 33, by the foregoing-described construction, are rendered removable by lifting the lates 41 and 45 from engagement with the ooks 44 and 48, thereby permitting the shelves 33 to be withdrawn from the guides 31 for cleansing or repair, the screens 26 being removed by merely unhooking them from the flange-20. With the screens and plates 34 removed, the shelves 18 are rendered readily accessible for cleansing. This feature of my construction is of importance as it renders the air-washer sanitary.

It'is manifest that where conditions reuire it, as for instance where the'air to be c ansed is especially dirty, the casing may be widened oveFthat shown in the drawings, and any number, of sets of shelves and baflies, with a water-curtain therefor, may be used. V

The valves 57 on thepipes 56 are provided for equalizing the flow of water upon the shelf 12 throughout the len th of the pipe 55.

By so providing the stu s 49 as to render their extent of profusion beyond the iron. 16 controllable, the lates 50 may be adjusted back and forth r ative'to the iron 16 to enlarge or restrict the opening. 54 as conditions r 'u'ire it to be varied. 1

t willbe noted that the'water in flowing down the screens is caused in part to be carried through each screen, and that the water carried throu h the screens and precipitated on the s elves 18 is caused to run off therefrom and, in falling over the respective screens below, again is subjected to the suction action and portions of it. are again drawn through the mentioned screens to again be precipitated and flow to the next screens below, this action continuin until the water reaches the tank. It will Tie understood that the amount of water drawn through the screens depends on the stren th V of the suction-action produced. A deci ed advantage aflorded by'th'is construction is that of causing a Water-curtain of the desired density to be provided at all of the screens independent of their position relative to the Water-supply pipe.

'What I claim as new, and desire to secure by Letters Patent, is 1. In an air-washing apparatus, the combination of a casin having an air-inlet and air-outlet, a vertica series of screen-sections,

a vertical series of shelves in the rear of said screens, the shelves being so constructed and arranged as to discharge the water precipitated thereon to the water-curtain below it, a second vertical series of shelves alternating with said first-named shelves, and means for producing a water curtain between the screen and the air-inlet.

2. In an air-washing apparatus, the combination of a casin having an air-inlet and air-outlet, a vertica series of-screen-sections, a vertical series of shelves in the rear of said screens, the shelves being so constructed and arranged as to discharge the Water precipitated thereon to the water-curtain below it, a baflie at the rear edge-portion of each of said shelves, a second vertical series of shelves alternating with said first-named shelves, and means for producing a watercurtain between the screen and the air-inlet.

3. In an airwashing apparatus, the combination of a casin having an air-inlet and air-outlet, a vertica series of screen-sections, a vertical series of shelves in the rear of said screens, the shelves being so constructed and arranged as to discharge the water precipitated thereon to the water curtain'below it, a 'bafiie at the rear edge-portion of each of said shelves, a second vertical series of shelves.

alternating with said first-named shelves and provided with depending bathe-portions, and 'means' for producing a water-curtain between the screen and air-inlet.

4. In an air-washing apparatus, the combination of a casing having anair-inlet and air-outlet, a vertica series of screen s ections', a vertical series of rearwardly and upwardly inclined shelves in the rear of said screens,

the shelves being so constructed and arranged as to discharge the water precipitated thereon to the water-curtain below it, a bafiie at the rear edge-portion of said shelves, a second vertical series of shelves alternatingwith said first-named shelves and inclining downwardly and rearwardly, baflleportions on the lower rear edge-portions of said second-named shelves provided with above said baffle andprovided with a depending portion terminating in a trough, and means for producin a water-curtain between the screen an the air-inlet, for the purpose set forth.

6. Inan air-washing a aparatus, the combination of a casing provi ed with an air-inlet and air-outlet, a screen-partition in the casing, a shelf in the rear of said screen, a baffle above the shelf against which the air is caused to impinge, means for deflecting the air downward after it leaves the baflle, a second inclined shelf located below said means having 'its lower edge-portion of trough-shape, and means for producing a water-curtain between the screen and the air-inlet, for the purpose set forth.

7. In an air-washing apparatus, the combination of a casing provi ed with an air-inlet and air-outlet, a screen-partition in the casing, a vertical series of shelves in the rear of said screen, a baflle above each shelf against which the air is caused to impinge, a second series of shelves so arranged as to cause one of said last-named shelves to extend above each of said baffles, and means for producing a water-curtain between the screen and the air-inlet, for the purpose set forth.

8. In an air-washing a aratus, the combination of a casing provi ed with an air-inlet and air-outlet, a screen-partition in the casing, a vertical series of shelves in the rear of said screen, a bafie above each of said shelves against which the air is caused to'impinge, a second series of vertical shelves provided with depending lates, the shelves being so constructed an arranged as to cause one thereof to extend above each of said baffles, and means for producing a water-curtain,

with a depending plate-portion, the lastnamed shelves being so constructed and arranged as to cause one to extend across each of said baffles, and means for producing a water-curtain between the screen and the air-inlet, for the purpose set forth.

10. In an air-washing apparatus, the combination of a casing provi ed with an air-inlet and air-outlet, a screen-partition in the casing, a vertical series of shelves in the rear of said screen, a baflie above each of said shelves against which the air is caused to im inge, a second series of vertically inclined she ves slidably confined in the casing, the last-named shelves being so constructed and arranged as to cause one of each to extend above said baflles, means in the rear of said shelves for releasably maintaining them in position, and means for forming awater-curtain. between said screen and air-inlet.

11. In an air-washing apparatus, the combination of a casing provided with an air-inlet and air-outlet, a screen-partition in the casing,- a shelf in the rear of said screen, a baffle above the shelf, a second shelf disposed at an angle to the first-named shelf and having its upper edge-portion extending above the upper edge of the baffle and its lower edgeportion in substantially the same plane as that occu ied by the upper edge of the baffle, an imper orate member depending from the lower edge of said second-named shelf, and means for producing a water-curtain betw en said screen and air-mlet.

12. In an air-washing apparatus, the combination of a casing provided with an air-in' let and air-outlet, a screen-partition in the casing, a baffle above the shelf, a second shelf dis osed at an angle to said first-named shelf wit its upper portion above the upper edge of the baffle, a late-member dependln T from the lower end of said second-name shelf, a third shelf below said second-named shelf and said baffle and inclining downwardly from front to rear,j and means for producing a water-curtain between the screen and the air-inlet, for the pur ose set forth.

13. In an air-was ing ap aratus, the combination of a casing provided with an air-inlet and air-outlet, a screen-partition in the casing, an upwardly and rearwardly inclined shelf in the rear of said screen, a baffle connected with the upper end of said shelf against which the air is caused to impinge, a second shelf above said baffle having a depending portion, a third shelf below said second-named shelf, and means for producing a. water-curtain between said screen and airinlet. r

14. In an air-washing apparatus, the combination of a casing, a screen in the casing, an upwardly and rearwardly inclined shelf at the upper edge of said screen, studs extending forward fromthe lower edge ,of said shelf, a plate carried b said studs and spaced from the lower end 0 said shelf to form with the latter a trough having a slotted bottom, and means for discharging water into the trough, for the urpose set forth.

15. 11 an air-washing apparatus, the combination of a casing, a partition in the casing containing screensections, a vertical series of rearwardly and upwardly inclined shelves in the rear of said screens, a baffle at the upper extremity of each of said shelves, each baflle positioned in a plane above that occupied y the upper edge of the screen to which it is opposed, a second vertical series of shelves in the rear of said. first-named shelves and downwardly and rearwardly inclined, said last-named shelves being so disposed as to cause them to alternate with said bafiies, de-

ending plate-portions carried at the rear ower ends of said second-named shelves, and means for producing a water-curtain between said screens and the air-inlet.

16. In an air-Washing apparatus, the combination of a casing, a partition in the casing, screen-sections in said partition, a vertical series of rearwardly and upwardly inclined shelves, a baflle atthe upper edge-portion of each of said shelves, a second vertical series of shelves in the rear of said first-named shelves and rearwardly and downwardly inclined, said second-named shelves alternating at their upper ends with said baffles, de-

pending plate-portions carried by said secproducing a watercurtain between said screens and the air-inlet.

17. Inan air-washing apparatus, the combination of'a casing, a screen in the casing, baffle-means in the rear of said screen, a shelf above said bafiie-means, a deflector adjacent to said shelf, and means for discharging water upon said shelf and against the deflector comprising a main pipe adapted to be connected with a source of supply and branch pipes extending therefrom and having open ends at'which the water discharges upon the shelf, for the purpose set forth.

LOUIS NAROWETZ.

In presence of- RALPH A. SoHAEFEn,

W. T. JONES. 

